U.S. patent number 11,206,474 [Application Number 16/605,474] was granted by the patent office on 2021-12-21 for bluetooth headset.
This patent grant is currently assigned to INNOVATION SOUND TECHNOLOGY CO., LTD.. The grantee listed for this patent is Innovation Sound Technology Co., LTD.. Invention is credited to Chun Lan, Shunming Yuen, Lei Zheng.
United States Patent |
11,206,474 |
Yuen , et al. |
December 21, 2021 |
Bluetooth headset
Abstract
The utility model relates to a Bluetooth earphone, comprising a
main earphone unit and an auxiliary earphone unit, further
comprising a pair of ear hooks. The front part of the inner side of
each of the said earphone units is provided with a connecting canal
for inserting the said vertical insertion segment at the bottom.
The Bluetooth earphone provided in the utility model not only
adapts to applications in different situations by setting a
pluggable ear hook, but also uses memory alloy as the inner
skeleton of the ear hook to facilitate a user make a fine
adjustment by his/her shape of auricle.
Inventors: |
Yuen; Shunming (Guangdong,
CN), Zheng; Lei (Guangdong, CN), Lan;
Chun (Guangdong, CN) |
Applicant: |
Name |
City |
State |
Country |
Type |
Innovation Sound Technology Co., LTD. |
Guangdong |
N/A |
CN |
|
|
Assignee: |
INNOVATION SOUND TECHNOLOGY CO.,
LTD. (Guangdong, CN)
|
Family
ID: |
1000006006825 |
Appl.
No.: |
16/605,474 |
Filed: |
January 25, 2018 |
PCT
Filed: |
January 25, 2018 |
PCT No.: |
PCT/CN2018/074125 |
371(c)(1),(2),(4) Date: |
October 15, 2019 |
PCT
Pub. No.: |
WO2019/144338 |
PCT
Pub. Date: |
August 01, 2019 |
Prior Publication Data
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|
|
|
Document
Identifier |
Publication Date |
|
US 20210281939 A1 |
Sep 9, 2021 |
|
Current U.S.
Class: |
1/1 |
Current CPC
Class: |
H04R
1/105 (20130101); H04R 1/1041 (20130101); H04R
1/1016 (20130101); H04R 1/1058 (20130101); H04R
1/08 (20130101); H04R 1/1025 (20130101); H04R
1/023 (20130101); H04R 2420/07 (20130101) |
Current International
Class: |
H04R
1/10 (20060101); H04R 1/02 (20060101); H04R
1/08 (20060101) |
Field of
Search: |
;381/74 |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
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101203058 |
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Jun 2008 |
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CN |
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102647649 |
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Aug 2012 |
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CN |
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107454492 |
|
Dec 2017 |
|
CN |
|
206993344 |
|
Feb 2018 |
|
CN |
|
2001-346287 |
|
Dec 2001 |
|
JP |
|
2005-318342 |
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Nov 2005 |
|
JP |
|
Other References
International Search Report for PCT/CN2018/074125, dated Oct. 10,
2018; English translation submitted herewith (5 pgs.). cited by
applicant.
|
Primary Examiner: Ton; David L
Attorney, Agent or Firm: Fitch, Even, Tabin & Flannery,
LLP
Claims
The invention claimed is:
1. A Bluetooth earphone comprising: a main earphone unit; an
auxiliary earphone unit; a pair of ear hooks, which are made of a
nickel-titanium alloy memory wire, a pair of plastic sleeves
respectively placed on both ends of the nickel-titanium alloy
memory wire, and silicone components integrally cladded on the
nickel-titanium alloy memory wire and on the outside of the plastic
sleeves, and comprise a vertical insertion segment, and an
arc-shaped hook extending from behind the top of the vertical
insertion segment; wherein a connecting canal for inserting the
vertical insertion segment at the bottom is formed at the front
portion of inner side surface of each of the earphone units; and a
depressed hook groove is formed in a sidewall surface at the near
bottom end of the vertical insertion segment, a convex rim for
inserting into the hook groove is formed at a predetermined
position of the hole wall for the connecting canal, the rim is a
guiding slope extending onto the wall of the connecting canal on
the side facing the opening of the connecting canal, and a curved
chamfer is formed at the circumferential edge of the bottom end of
the vertical insertion segment.
2. The Bluetooth earphone according to claim 1, wherein: each of
the earphone units is composed of a front cover for switch button,
an outer frame for ear cup, a main control circuit board, a
battery, a back cover for ear cup, a speaker back cover, and a
speaker, a speaker front cover and a seal gland for sound
regulation; the main control circuit board is provided with a
pickup microphone, a Bluetooth SOC, a decoding module, a speaker
drive module, a charge management module, and a control button, the
outer frame for the ear cup is connected to an outer opening in the
back cover for the ear cup; the main control circuit board and the
battery are disposed in a cavity surrounded by the outer frame for
the ear cup and the back cover for the ear cup; a pickup hole
positioned opposite to the position of a pickup microphone is
disposed in the outer frame for the ear cup; the front cover for
the switch button is movably disposed in an outer opening of the
outer frame for the ear cup, and coupled to a control button on the
main control circuit board; the speaker back cover is connected to
the rear side of the back cover for the ear cup; the speaker is
disposed in the speaker back cover, and mounted with a front cover
in its front hood; the speaker front cover has a forwardly
extending and length-predetermined sound guiding tube, to which the
seal gland for sound regulation is connected, and the connecting
canal is surrounded by an arched curve surface formed by a forward
bulge of the front end of inner side of the back cover for ear
cup.
3. The Bluetooth earphone according to claim 2, wherein at least
one sound-regulating hole is disposed in the speaker front cover
and the speaker back cover respectively.
4. The Bluetooth earphone according to claim 3, wherein a
waterproof sound-regulating mesh fabric is attached to the inner
aperture of the sound regulating hole, and sound-regulating mesh
fabric is also disposed at the front end of the sound guiding
tube.
5. The Bluetooth earphone according to claim 2, wherein a
waterproof sound-regulating mesh fabric is attached to the inner
opening of the pickup hole.
6. The Bluetooth earphone according to claim 2, further comprising
a waterproof cover, which is fastened at an opening of the
connecting canal horizontally toward the battery.
Description
CROSS-REFERENCE TO RELATED APPLICATIONS
This application is a U.S. national phase application filed under
35 U.S.C. .sctn. 371 of International Application No.
PCT/CN2018/074125, filed Jan. 25, 2018, designating the United
States, the entire contents of which are hereby incorporated herein
by reference.
FIELD OF THE INVENTION
The utility model relates to an earphone, in particular to a
Bluetooth earphone.
BACKGROUND OF THE INVENTION
Conventional wired head earbuds/earphones are basically composed of
a sounding unit and earphone signal cords used to connect to a
signal source and to function to transmit audio signals. Although
the signal stability in transmission can be ensured due to the
presence of signal cords, some disadvantages are also caused by
their own characteristics such as a fixe length, the need to be
connected to a dedicated jack (occupying the number of reserved
jacks on the device) before use, a tendency to tangle and knot, the
production of a receiver effect.
With the development of Bluetooth wireless transmission technology
and people's instinct to get rid of restraint, more and more
Bluetooth headsets with high transmission bandwidth and high
transmission stability appear on the market. These Bluetooth
headsets are roughly divided into two categories. One is a
two-channel music earphone with the sound quality as a selling
point, having a pair of sounding units. The other is an earphone
convenient for talking after being connected with a mobile phone.
Most earphones only have one sounding unit in this case.
In addition, in order to cope with the situation where large
amplitude of vibration during outdoor activities readily causes an
earphone to fall off, an ear hook is connected to the casing of a
Bluetooth earphone (a sounding unit). The traditional ear-wear
Bluetooth earphone is fixed to human ears via a hook for stable
wear. However, people do not always stay outdoors, and they spend a
considerable part of time sitting quiet indoors or in cars, so this
type of ear-wear Bluetooth headset exposes its shortcomings. On the
one hand, the ear-wear Bluetooth headset is not easy to wear, and
it may cause pain and discomfort to human ears after being hang for
a long time. On the other hand, since each person's ear shape is
not the same, and the shape of an ear hook is mostly the same, it
is not perfectly adapted to all users.
Content of Utility Model
The utility model is intended to solve the above technical problem
by proposing a Bluetooth earphone with better adaptability to human
ears and different product forms for static and dynamic use
states.
The technical solution proposed by the utility model relates to a
Bluetooth earphone, comprising a main earphone unit and an
auxiliary earphone unit, further comprising a pair of ear hooks,
which are made of a nickel-titanium alloy memory wire, a pair of
plastic sleeves respectively placed on both ends of the said
nickel-titanium alloy memory wire, and silicone components
integrally cladded on the said nickel-titanium alloy memory wire
and on the outside of the plastic sleeves, and comprise a vertical
insertion segment, and an arc-shaped hook extending from behind the
top of the said vertical insertion segment;
A connecting canal for inserting the said vertical insertion
segment at the bottom is formed at the front portion of inner side
surface of each of the said earphone units;
A depressed hook groove is formed in the sidewall surface at the
near bottom end of the said vertical insertion segment. A convex
rim for inserting into the said hook groove is formed at a
predetermined position of the hole wall for the said connecting
canal. The said rim is a guiding slope extending onto the wall of
the said connecting canal on the side facing the opening of the
connecting canal. A curved chamfer is formed at the circumferential
edge of the bottom end of the said vertical insertion segment.
Further, each of the said earphone units is composed of a front
cover for switch button, an outer frame for ear cup, a main control
circuit board, a battery, a back cover for ear cup, a speaker back
cover, a speaker, a speaker front cover, and a seal gland for sound
regulation;
The said main control circuit board is provided with a pickup
microphone, a Bluetooth SOC, a decoding module, a speaker drive
module, a charge management module, and a control button.
The outer frame for the said ear cup is connected to an outer
opening in the back cover for the said ear cup; the said main
control circuit board and the said battery are disposed in a cavity
surrounded by the outer frame for the said ear cup and the back
cover for the said ear cup; a pickup hole positioned opposite to
the position of a pickup microphone is disposed in the outer frame
for the said ear cup; the front cover for the said switch button is
movably disposed in an outer opening of the outer frame for the
said ear cup, and coupled to a control button on the said main
control circuit board; the said speaker back cover is connected to
the rear side of the back cover for the said ear cup; the said
speaker is disposed in the said speaker back cover, and mounted
with a front cover in its front hood; the said speaker front cover
has a forwardly extending and length-predetermined sound guiding
tube, to which the said seal gland for sound regulation is
connected;
The said connecting canal is surrounded by an arched curve surface
formed by a forward bulge of the front end of inner side of the
said back cover for ear cup.
Further, at least one sound-regulating hole is disposed in the said
speaker front cover and the said speaker back cover
respectively.
Further, waterproof sound-regulating mesh fabric is attached to the
inner aperture of the said sound regulating hole, and
sound-regulating mesh fabric is also disposed at the front end of
the said sound guiding tube.
Further, waterproof sound-regulating mesh fabric is attached to the
inner opening of the said pickup hole.
Further, it also comprises a waterproof cover, which is fastened at
an opening of the said connecting canal horizontally toward the
battery.
The beneficial effects of the utility model are:
The Bluetooth earphone provided in the utility model not only
adapts to applications in different situations by setting a
pluggable ear hook, but also uses memory alloy as the inner
skeleton of the ear hook to facilitate a user make a fine
adjustment by his/her shape of auricle.
In addition, traditional Bluetooth earphones are improved in sound
quality by a combination and adjustment of sound-regulating hole,
sound-guiding tube, sound-guiding cloth and sound-guiding sleeve,
and have a better frequency response curve.
Instruction on accompanying drawings
The Bluetooth headset involved in the utility model is further
described below with reference to the accompanying drawings.
FIG. 1 is a three-dimensional structure diagram of the main
earphone unit in the utility model;
FIG. 2 is a three-dimensional structure diagram of the auxiliary
earphone unit in the utility model;
FIG. 3 is a structure diagram of the ear hook in the utility
model;
FIG. 4 is a structure diagram of the nickel-titanium alloy memory
wire and plastic sleeve;
FIG. 5 is a diagram for the adjustment of the ear hook in the
utility model;
FIG. 6 is an exploded structure view of the main earphone unit in
the utility model;
FIG. 7 is a lateral view of the main earphone unit in the utility
model;
FIG. 8 is a cross-sectional structure view of the main earphone
unit shown in FIG. 7 in the direction of A-A;
FIG. 9 is a cross-sectional structure view of the main earphone
unit shown in FIG. 7 in the direction of B-B;
FIG. 10 is a structure diagram of any earphone unit with its ear
hook inserted in the utility model.
Concrete Ways of Implementation
As shown in FIGS. 1 and 2, the Bluetooth headset involved in the
utility model comprises a main earphone unit 1 and an auxiliary
earphone unit 2, and further comprises a pair of ear hooks 3. The
integral structure of the main and auxiliary earphone units 1 and 2
forms mirror images with each other.
As shown in FIGS. 3, 4, 5, 6, 7, 8, 9 and 10, ear hooks 3 is
composed of a nickel-titanium alloy memory wire 301, a pair of
plastic sleeves 302 respectively placed on both ends of the
nickel-titanium alloy memory wire 301, and silicone components
integrally cladded on the said nickel-titanium alloy memory wire
301 and on the outside of the plastic sleeves 302, and comprise a
vertical insertion segment, and an arc-shaped hook extending from
behind the top of the said vertical insertion segment.
The front part of the inner side of each of the earphone units is
provided with a connecting canal 17 for insertion of the vertical
insertion segment at the bottom.
A depressed hook groove 303 is formed in the sidewall surface at
the near bottom end of the vertical insertion segment. A convex rim
4 for inserting into the hook groove 303 is formed at a
predetermined position of the hole wall for the connecting canal
17. The rim 4 is a guiding slope extending onto the wall of the
connecting canal 17 on the side facing the opening of the
connecting canal 17. A curved chamfer 304 is formed at the
circumferential edge of the bottom end of the vertical insertion
segment.
Each of the earphone units is composed of a front cover 5 for
switch button, an outer frame 6 for ear cup, a main control circuit
board 7, a battery 8, a back cover 9 for ear cup, a speaker back
cover 10, and a speaker 11, a speaker front cover 12 and a seal
gland 15 for sound regulation;
The main control circuit board 7 is provided with a pickup
microphone 16, a Bluetooth SOC, a decoding module, a speaker drive
module, a charge management module, and a control button.
The outer frame for ear cup 6 is connected to the outer opening of
the back cover for ear cup 9. The main control circuit board 7 and
the battery 8 are disposed in a cavity surrounded by the outer
frame for ear cup 6 and the back cover for ear cup 9. Disposed on
the outer frame for ear cup 6 is pickup hole 19 positioned opposite
to the position of pickup microphone 16. Preferably, waterproof
sound-regulating mesh fabric 14 is attached to the inner opening of
pickup hole 19.
The front cover for switch button may be movably disposed in an
outer opening of the outer frame for ear cup 6, and coupled to a
control button on main control circuit board 7.
The speaker back cover 10 is connected to the rear side of the back
cover for ear cup 9. The speaker 11 is disposed in the speaker back
cover 10, and mounted with a front cover in its front hood. The
speaker 11 front cover has a forwardly extending and
length-predetermined sound guiding tube, to which the seal gland
for sound regulation is connected. Preferably, the speaker back
cover 10 is connected to the back cover for ear cup 9 with screws
21.
Preferably, it also comprises a waterproof cover 22, which is
fastened at an opening of the connecting canal 17 horizontally
toward the battery 8.
The connecting canal 17 is surrounded by an arched curve surface 20
formed by a forward bulge of the front end of inner side of the
back cover for ear cup 9.
At least one sound-regulating hole 13 is disposed in the speaker
front cover 10 and the speaker back cover 12 respectively.
Waterproof sound-regulating mesh fabric 14 is attached to the inner
aperture of the sound regulating hole 13, and sound-regulating mesh
fabric 14 is also disposed at the front end of the sound guiding
tube 18.
Preferably, the main control circuit board 7 is provided with LED
particles, and the front cover for switch button 5 is provided with
a through hole. It further includes an LED light column 24 for
being disposed on the LED particles as well as a protective sleeve
25 for being placed on the LED light column. It is also preferable
that the volume adjustment key 23 is provided on the outer frame
for ear cup 6 of the main earphone unit 1, made of TPE+ABS757
material and subjected to waterproof treatment on the inner surface
thereof.
The utility model is not limited to the above embodiment. The
technical solutions for the above various embodiments involved in
the utility model can be cross-combined with each other to form a
new technical solution. In addition, the technical solutions formed
by the equivalent replacement all fall within the protection scope
required by the utility model.
* * * * *